diff --git a/Cargo.lock b/Cargo.lock
index fd0d4a297..ba035a72c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2070,9 +2070,9 @@ checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.0"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d22af068fba1eb5edcb4aea19d382b2a3deb4c8f9d475c589b6ada9e0fd493ee"
+checksum = "c4f5b37a154999a8f3f98cc23a628d850e154479cd94decf3414696e12e31aaf"
 
 [[package]]
 name = "unicode-linebreak"
diff --git a/deny.toml b/deny.toml
index ecc738cfe..fb076dd5e 100644
--- a/deny.toml
+++ b/deny.toml
@@ -30,6 +30,7 @@ allow = [
     "BSD-3-Clause",
     "CC0-1.0",
     "MPL-2.0", # XXX considered copyleft?
+    "Unicode-DFS-2016",
 ]
 copyleft = "deny"
 allow-osi-fsf-free = "neither"